805012 has 24 divisors (see below), whose sum is σ = 1541736. Its totient is φ = 365568.

The previous prime is 804997. The next prime is 805019. The reversal of 805012 is 210508.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5776 + 799236 = 76^2 + 894^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5808 + ... + 5944.

It is an arithmetic number, because the mean of its divisors is an integer number (64239).

2⁸⁰⁵⁰¹² is an apocalyptic number.

It is an amenable number.

805012 is a deficient number, since it is larger than the sum of its proper divisors (736724).

805012 is a wasteful number, since it uses less digits than its factorization.

805012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 805012 is about 897.2246095599. The cubic root of 805012 is about 93.0252369171.

It can be divided in two parts, 80 and 5012, that multiplied together give a triangular number (400960 = T₈₉₅).

The spelling of 805012 in words is "eight hundred five thousand, twelve".